<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script>
function boom()
{
  var newDiv = document.createElementNS("http://www.w3.org/1999/xhtml", "div");
  newDiv.style.width = "100px";
  newDiv.style.height = "8px";
  newDiv.style.background = "lightgreen";
  document.getElementById("tr").appendChild(newDiv);
}
</script>
</head>

<body onload="boom()">

<table border="1">
 <tr id="tr">
  <td></td>
  <td style="padding-left: 10%"><select style="padding-left: 20%; bottom: 10%;"><option style="padding: 0 0 10% 20%; width: 25px;"></option></select></td>
 </tr>
</table>

</body>
</html>
